More than 600 bird species have been spotted in California, making up about two-thirds of all bird species in North America, according to the National Audubon Society.

Ethyl glucuronide stays in the body after alcohol breaks down. Using chemical analysis, the authors tested feathers and liver ...

Science California Rice Fields Offer Threatened Migratory Waterbirds a Lifeline Conservation groups are working with Central Valley farmers to restore critical habitat for wetland birds struggling ...

Bird flu virus has swept through farms across the nation’s largest dairy producing state. All human cases had been mild - until now.

CalMatters California wine country traffic jam fuels fight over endangered mice, marsh birds by CalMatters May 7, 2025 5:30 am Click to share on X (Opens in new window) X ...

A disturbing avian mystery is unfolding in a Northern California town where residents have reported birds "exploding," and officials are investigating the incidents.

California officials have declared a state of emergency over the spread of bird flu, which is tearing through dairy cows in that state and causing sporadic illnesses in people in the U.S.

California Gov. Gavin Newsom declared a state of emergency Wednesday to combat bird flu, which has spread to more than a quarter of all the state's dairies in the last month and infected 34 state ...

More than 75,000 birds have died after an outbreak of disease in a California wetlands refuge. The Tule Lake National Wildlife Refuge in the Klamath Basin, near the California-Oregon border, is in ...

California officials have declared a state of emergency over the spread of bird flu, which is tearing through dairy cows in that state and causing sporadic illnesses in people in the U.S.